Chemical properties: colorless crystal, camphor like odor, soluble in alcohol.

双环戊二烯的用途：用于制造金属有机化合物、二茂铁、杀虫剂、味精和石油树脂等用途。

Application of dicyclopentadiene: used in the manufacture of organometallic compounds, ferrocene, insecticides, monosodium glutamate and petroleum resin.

环戊二烯二聚体（或环戊二烯）的主要用途有：

The main uses of cyclopentadiene dimer (or cyclopentadiene) are as follows:

（1）用作乙烯-丙烯二元共聚物（EPDM）的第三组份；

(1) It is used as the third component of ethylene propylene binary copolymer (EPDM);

（2）用作合成乙叉降冰片烯（ENB）的原料；

(2) It is used as raw material for synthesis of ethylene norbornene (ENB);

（3）与顺丁烯二酸酐反应得到降冰片烯二酸酐，用作环氧树脂固化剂、聚酯树脂、醇酸树脂、杀虫剂的原料；

(3) Norbornenedicarboxylic anhydride was synthesized by the reaction of maleic anhydride and maleic anhydride, which was used as raw material of epoxy resin curing agent, polyester resin, alkyd resin and insecticide;

（4）环戊二烯的六氯化物——六氯环戊二烯，与顺酐反应得到的六氯化内亚甲基的氢化邻苯二甲酸酐，用作合成树脂的阻燃剂；

(4) Hexachlorocyclopentadiene, the hexachloride of cyclopentadiene, is reacted with maleic anhydride to obtain hydrogenated phthalic anhydride of methylene hexachloride, which is used as flame retardant for synthetic resins;

（5）二聚环戊二烯用于桐油、亚麻仁油、大豆油、鱼油等的改性，可加快干燥性，提高耐水、耐碱性；

(5) Dicyclopentadiene can be used to modify tung oil, flaxseed oil, soybean oil, fish oil, etc., which can speed up the drying property and improve the water and alkali resistance;

（6）二聚环戊二烯树脂可用作橡胶粘合剂、压敏粘接剂、热溶粘合剂、油墨、涂料等；

(6) Dicyclopentadiene resin can be used as rubber adhesive, pressure-sensitive adhesive, hot-melt adhesive, ink, coating, etc;

（7）二聚环戊二烯氧化物可用作注射成型和层压成型树脂；

(7) Dicyclopentadiene oxide can be used as injection molding and laminating resin;

（8）环戊二烯部分加氢得到的环戊烯，再聚合制得1,5-反式聚环戊烯；

(8) Cyclopentene was obtained by partial hydrogenation of cyclopentadiene, and then polymerized to obtain 1,5-trans-cyclopentene;

（9）环戊二烯是经营荻氏剂类杀虫剂原料；

(9) Cyclopentadiene is the raw material of Di's insecticides;

（10）环戊二烯还用于药物合成。例如胃长乐的中间体α-环戊二烯基扁桃酸甲酯，由苯乙酮酸甲酯与环戊二烯加成而得；

(10) Cyclopentadiene is also used in drug synthesis. For example, the intermediate of weichangle, α - cyclopentadienyl mandelic acid methyl ester, is obtained by the addition of methyl phenylglyoxylate and cyclopentadiene;

（11）加氢后用作高能燃料。

(11) After hydrogenation, it is used as high energy fuel.

双环戊二烯的用途：可用作乙丙橡胶的第三单体。用于合成亚乙基降冰片烯,亦用作乙丙橡胶第三单体。与顺酐反应得到降冰片烯二酸酐,用作环氧树脂固化剂。双环戊二烯对桐油、亚麻仁油、大豆油、鱼油等改性,可加快干燥性,提高耐水、耐碱性。用于经营环戊二烯树脂、油漆和涂料等的原料。加氢后用作高能燃料。

Application of dicyclopentadiene: it can be used as the third monomer of ethylene propylene rubber. It is used in the synthesis of ethylidene norbornene and the third monomer of ethylene propylene rubber. Norbornenedicarboxylic anhydride was synthesized from maleic anhydride and used as curing agent of epoxy resin. The modification of tung oil, linseed oil, soybean oil and fish oil by dicyclopentadiene can accelerate the drying property and improve the water and alkali resistance. It is used for raw materials of cyclopentadiene resin, paint and coating. After hydrogenation, it is used as high energy fuel.

双环戊二烯的用途：主要用于医药、农药、合成树脂、香料、合成橡胶等领域。可用于经营金刚烷、2-氯-5-氯甲基吡啶、金属茂、戊二醛、氨基甲酸酯、环氧树脂固化剂、阻燃剂、双环戊二烯氯化物（杀虫剂）等。

Application of dicyclopentadiene: mainly used in medicine, pesticide, synthetic resin, perfume, synthetic rubber and other fields. It can be used in adamantane, 2-chloro-5-chloromethylpyridine, metallocene, glutaraldehyde, carbamate, epoxy curing agent, flame retardant, dicyclopentadiene chloride (insecticide), etc.